1. Department of Management and Economics & Center for Advanced Studies in Management and Economics of the UBI (CEFAGE-UBI) & Research Center in Business Sciences (NECE-UBI), University of Beira Interior (UBI), Covilhã, Portugal
2. Department of Management and Economics & Center for Advanced Studies in Management and Economics of the UBI (CEFAGE-UBI), University of Beira Interior (UBI), Covilhã, Portugal
3. Department of Economics & Business Research Unit (BRU-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal